Brush Buster

ABSTRACT

This is a device for cutting small trees and brush from an upright, comfortable position. Using a raised pivot point and opposing parallel blades this device cuts the target at or near ground level. With existing loppers and trimmers, you are unable to clear larger brush without squatting or bending to place the blades near the ground. With this tool you shove the bottom blade into place with one foot, place one foot on the rear deck, pull the long handle that is waist high and cut the sapling with very little expended energy.

FIELD OF THE INVENTION

The Brush Buster is aimed at the general field of cutting devices for clearing and maintaining any area of heavy vegetation that cannot be cleared with a “weedeater” type trimmer. It could be classified as a lopper except the positioning and movement of the blades are uniquely different.

BACKGROUND OF THE INVENTION

When I moved from Dallas in 1996 to a home overlooking Lake Texoma, I needed to clear and maintain about one acre to enhance the view of the lake. I went to numerous stores to find something that would allow me to cut small saplings and shrubbery without bending or squatting as you must do with standard loppers to cut a brush at ground level. No product in the market fit my needs. I had to do it the hard way.

Three years ago, I moved to Virginia and bought a home overlooking Smith Mountain Lake. I faced the same chore of clearing an area to open up the view. Again I went to Walmart, Lowe's, and numerous farm and garden supply stores and could not find a cutter that would help.

This year I moved to another home further out in the country and have an area along a creek that I am clearing. Not finding what I wanted, I decided to make my own cutter. With my brother's assistance the Brush Buster was created.

SUMMARY OF THE INVENTION

The Brush Buster fills a major void in the art of cutting and maintaining the landscape. Loppers allow you to trim and prune upright trees and bushes. Pole loppers will reach higher. Chain saws will get the big stuff. Weedeaters will cut weeds and grass. Our device does the down to earth work of clearing saplings so the area can be maintained with regular mowing.

The key to our mechanism is a raised pivot point on a triangular frame that is the platform for the Brush Buster. In front of the pivot point, at ground level is an offset blade facing to the rear. This bottom section contains no moving parts. The extended handle is attached with a bolt about 4 inches above the ground. The lower end of the handle has the second blade that faces forward. After the device is pushed into position, with the forward blade behind the sapling to be cut, a firm pull backward with the handle severs the stalk as the two blades bypass each other.

DESCRIPTION OF THE DRAWINGS

It is necessary to illustrate the device to make it easier to understand the principle.

Drawing number 1:

FIG. 1, 1 is a wider metal frame that, in conjunction with 3, allows the device to remain in an upright position. The operator also uses this section for holding the cutter in place with one foot.

2 & 6 (FIG. 2) are components of the raised triangular structure to allow the pivot poitit 7 to be above the cutting points of 4 on drawing 1, FIG. 2 and 10 on drawing 2 FIG. 1.

Base part number 3 extends to both sides of the triangle for stability and to hold the forward blade.

Drawing number 2:

The handle 9 in FIG. 1 is curved rearward just above the fulcrum to avoid interference with the object being cut. This handle holds the second blade 10 which pivots forward as the user pulls the handle to the rear. Blade 10 moves slightly above the forward blade to complete the cut.

FIG. 2 shows how the two pieces fit together and require only one bolt 14 to complete the construction.

CONCLUSION

We have built a working model of the Brush Buster as shown on page 2, FIG. 2 of the drawings. Since we could not reveal the purpose of our needs to third parties, we used different welding shops to develop the platform and the handle. To make the blades for our trial we used a grinding wheel in our home workshop. With this rudimentary construction using basic flat steel bars, we are able to sever oak and locust saplings up to one inch in diameter.

With precision tooling, hardened alloy blades, and lightweight exotic metals that are now available we believe the Brush Buster will weigh about the same as a larger set of standard tree loppers and will cut anything that a normal scissor style lopper will.

The simplistic nature of our invention allows for low production costs and should readily establish itself as a “must have” tool for anyone living in the suburbs or rural areas.

Our drawings and working model include parallel straight blades. We fully intend to explore the effect of using other blade configurations once we have obtained product protection from the patent office. 

1. A device that will cut small trees and shrubs at or near ground level.
 2. The user can operate the device without bending or squatting.
 3. With only one moving component, the device is easy to build at a nominal cost.
 4. Utilizing a raised fulcrum and a long handle it requires minimum effort to operate.
 5. A fixed blade on the bottom section is moved into a cutting position behind the target with one foot. This blade firmly holds the tree in place and severs half the trunk as the pivoting rear blade finishes the cut.
 6. By using lightweight metal alloys for construction, the Brush Buster will be easily moved from one small tree to the next. 